Thank you all for the quick responses, I will pick up a cone today and try that so he has no option to lick it. Surgery was really our last resort and we were hoping it wouldn't come to that, but if it does, it does.

I will try to get better pictures when I remove his current application of Manuka honey, so you guys can get a better look.

Also, it does drain every now and then a green/yellow ooze that is pretty thick.